Finding the Fourth Proportional to 307,840.06, 424,815.14 and 171,876.09
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Solution
The fourth proportional to 307,840.06, 424,815.14 and 171,876.09 is: 237,186.69
Step by Step Solution
- Step 1: Write the proportion equation
307,840.06 : 424,815.14 = 171,876.09 : x - Step 2: Convert to fraction form
307,840.06/424,815.14 = 171,876.09/x - Step 3: Cross multiply
307,840.06x = 424,815.14 × 171,876.09 - Step 4: Simplify right side
307,840.06x = 73,015,563,111.93 - Step 5: Solve for x
x = 73,015,563,111.93/307,840.06 - Step 6: Final answer
x = 237,186.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.